{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892658,-0.450734,0.000000,0.000000,0.290694,-0.575707,0.764237,0.000000,-0.343503,0.680292,0.647463,0.000000,-2193990.182884,4345096.776709,4107731.013638,1],    "boundingVolume": {    "region": [2.038332,0.704216,2.038436,0.704285,0.000000,34.600370]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_1967642.b3dm"}}}